[INFO] updating cached repository wmealing/prelim
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wmealing/prelim
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wmealing/prelim" "work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmealing/prelim" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b9394e4995f1356aec78c30b38756d1640d93f8
[INFO] sha for GitHub repo wmealing/prelim: 3b9394e4995f1356aec78c30b38756d1640d93f8
[INFO] validating manifest of wmealing/prelim on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wmealing/prelim on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wmealing/prelim
[INFO] finished frobbing wmealing/prelim
[INFO] frobbed toml for wmealing/prelim written to work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim/Cargo.toml
[INFO] started frobbing wmealing/prelim
[INFO] finished frobbing wmealing/prelim
[INFO] frobbed toml for wmealing/prelim written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmealing/prelim/Cargo.toml
[INFO] crate wmealing/prelim already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wmealing/prelim against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 581ce11e776b20763e186f882a83bed558d93dab209611ee470d024232025a6f
[INFO] running `"docker" "start" "-a" "581ce11e776b20763e186f882a83bed558d93dab209611ee470d024232025a6f"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling encode_unicode v0.3.5
[INFO] [stderr]    Compiling rev_lines v0.2.1
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling prelim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         Err(e) => {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.59s
[INFO] running `"docker" "inspect" "581ce11e776b20763e186f882a83bed558d93dab209611ee470d024232025a6f"`
[INFO] running `"docker" "rm" "-f" "581ce11e776b20763e186f882a83bed558d93dab209611ee470d024232025a6f"`
[INFO] [stdout] 581ce11e776b20763e186f882a83bed558d93dab209611ee470d024232025a6f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 695322d79d1f14edd6e08e0adcdc249adefcd64b2703dda5f1dc58cd1739b2f1
[INFO] running `"docker" "start" "-a" "695322d79d1f14edd6e08e0adcdc249adefcd64b2703dda5f1dc58cd1739b2f1"`
[INFO] [stderr]    Compiling prelim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/main.rs:159:13
[INFO] [stderr]     |
[INFO] [stderr] 159 |         Err(e) => {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "695322d79d1f14edd6e08e0adcdc249adefcd64b2703dda5f1dc58cd1739b2f1"`
[INFO] running `"docker" "rm" "-f" "695322d79d1f14edd6e08e0adcdc249adefcd64b2703dda5f1dc58cd1739b2f1"`
[INFO] [stdout] 695322d79d1f14edd6e08e0adcdc249adefcd64b2703dda5f1dc58cd1739b2f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmealing/prelim:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] dbdf351760923d28502a442d5d71266b8cd2775c194190be7b9abdec9e3fd565
[INFO] running `"docker" "start" "-a" "dbdf351760923d28502a442d5d71266b8cd2775c194190be7b9abdec9e3fd565"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prelim-adf986082c1074f9
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "dbdf351760923d28502a442d5d71266b8cd2775c194190be7b9abdec9e3fd565"`
[INFO] running `"docker" "rm" "-f" "dbdf351760923d28502a442d5d71266b8cd2775c194190be7b9abdec9e3fd565"`
[INFO] [stdout] dbdf351760923d28502a442d5d71266b8cd2775c194190be7b9abdec9e3fd565